A Prayer for My Cousin, Living Far and Cut Off

I once looked up the ruling on Islamqa.info and found that a husband can stop his wife from visiting her parents, as wives are supposed to obey their husbands. My cousin sister lives far away, and honestly, neither I nor her own family have seen her for years. We can’t even call her because she doesn’t have a phone, and her husband and his family won’t let her come home. I don’t even remember what she looks like anymore. Every time we try to reach her husband, he makes excuses or says she’s being disobedient and starts talking about her. They won’t let us speak to her, and it’s like she was never part of our lives. They even threatened her with divorce if she didn’t give birth to a boy. Please, make du’a for her. She wasn’t even allowed to attend her sister’s wedding.